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目的了解黑龙江省2014年1~29岁健康人群白喉抗体水平。方法在国家级疾病监测点抽取黑龙江省7个区(县),采用容量比例概率抽样方法,分别随机抽取2个村委会,采用简单随机抽样方法抽取1~29岁目标人群,共调查908名。用酶联免疫吸附试验测定白喉抗体。结果白喉抗体阳性率为69.38%,平均浓度为0.89IU/m L。抗体水平随年龄增长和免疫后时间延长而逐渐下降,15~29岁人群抗体水平最低。结论预测黑龙江省近几年不会有白喉的流行。
Objective To understand the level of diphtheria antibody in healthy population from January to 29 in Heilongjiang province in 2014. Methods Seven districts (counties) in Heilongjiang Province were selected from the national disease surveillance sites. Two village committees were randomly selected using the method of volume proportion probability sampling. A simple random sampling method was used to select the target population from 1 to 29 years old. A total of 908 . Diphtheria antibodies were determined by enzyme-linked immunosorbent assay. Results The positive rate of diphtheria antibody was 69.38% with the average concentration of 0.89IU / m L. Antibody levels gradually decreased with age and post-immunization time, and antibody levels were the lowest among 15- to 29-year-olds. Conclusion It is predicted that there will be no diphtheria epidemic in Heilongjiang Province in recent years.